Electropneumatic organ-valve.



R. HOPE-JONES.

ELECTROPNEUMAHC ORGAN VALVE.

APPHCATION FILED JULY [5, 1910.

Patented 0ct.17,1916.

ma u, @1 J [Wu a R1 wmw 9 Z 8 5 a, 1 w. AU M 29 ill- ROBERT HOPE-JONES, CF NORTH TONAWANDA NEW YGRI'Z, ASSIGHQE TE) THE RUDOLPH 'WURLITZER MANUFACTURING COMPANY, OF NORTH TOIJAWAHDA, NEW YORK, A (30.3?ORATIOH [51? NEW YORK.

ELECTBOPNEUMATIC 018,613 Iii-VALVE.

amass-4mm Specification of Letters Patent.

memes.

Patented Get. 11.1916.

To all whom 2L may concern Be it known that 1, Homer Hora-50mm, a subject of the King of Great Britain, residing at North Tonawanda, in the county of Niagara and some of New York, have invented certain new and useful improvements in Electropneimmiic Organ-Valves; and I do hereby declare the following to be 21 full, clear, and exec; description (if the same, reference being had to the 1000mpanying drawings, forming a part of the specification, and to the reference-numerals marked thereon.

My present invention has for its objectto pro 'ide improved form of valve adapted particularly to beese'd. in organ building, its construction being sifch that when so em-.

played it may be used as a primary valve for contre'lli-ng thespeaking of the varicus 0rga n pipes.

In connection with a valve of this chm-em ter my invention has for its further ebjeei to. provide an electron:agiietieaily-opersied valve in which El e casingend magneis are combined. ijlli. 'iiliele being-small in size al.- though provided with air passages of ample area to eliec a quick response (if ilie air in the channels contra-lied by the valve.

lily invention also has for preride certain improvements and arrange reenis iii parts enabling the wire and i'is Qegnet in be readily disconnecized. frm the wind trunk or similar pOTil-OP. of ilie organ :20 which it is :iimclu as Well to prov'de for convenient acc ss to i-lEQ 'ifi'i8;i01' ml valve casing itself.

To these and either ends ilze invention con sisis in certain imprmemenis and cmrilii'netions parts all as wilibe hereinafter more fiiliy described, the iiovei features being pointed out in the claims at the end of iiae specification.

matic view f an organ action including valve constructed in accordance with my iiiventioifi illnstrai'ing it's arrangement and eperation in conjunction with the parts of an orgzun with which ii may he associnted: Fig. 2 an enlarged detail view showing the valve casing in section; Fig. 3 is 2. bottom plan \liBWII Fig. i is :1 sectienal view taken on the line -1 4 of Fig. 3; Fi 5 is its objecfc to are used for venting the small air passages 01' channels controlling the secondary valves, v: iicli, in turn, cause iiie organ pipes to speak. and in Fig. 1 I have shown a valve constructed in accordance with my inveniion arranged in operative position in relation to the coiiperaiing parts of anorgan mechanism. in this figure of the drawing is shown the Wind chest 1 containing the chamber '12 to which air is supplied under pressure from any convenientv source. @ne of the simpler forms of Secendary valves, indicated by 3. is i lso shown operziiled by the rod 4: connected to the bellows 5 located in ilie chamber 2, which is ogierzited by the air pressure in the leiierwhea tile cenizr'olling passage 6 is opened to the etmospliere. The passage 6 is irequenily farmed iii the walis of the Wind ClIQSiJ shown. and. terminates in the port- T eommiiiiicatioe besweeri which and the eperfi iire er port 8, leading from the chamber 2, is geveriieil by the valve mechw ni'sm, :issi'ill be described mere in fiiil hereinafter. The being elecireme "ally operated is arranged iii a. circiiit. which closed ilie lie-y er H'iflfllfiiil is iie pressed, and in Fig. .i. I have also shown ii circuit diagrammatically as composed wires 1G ii iii eilier with she bettery 1-2. or oilier source of current, slid the circuit centacis which are closed when the lie; is depressed.

in iilusizrmiiig the present embodiment if my invention have shown valve cempri iiig-i; e. casing composed of en upper secticiz 14 and a lower section 1! the iefcier being detachable from the former and held in. proper position illiereon'by dowel pins 18.

The separable helf sections (if the casing are preferably made of cast rile-tel. The upper section of the casing is iii-trialled permanently ie an el'ccironmgnei having the parallel pole pieces 17 and 18, the extremities of which project through. fond flush with the in nor face of the'pozt i l, The pole pieces ore provideclwzth-the usual wiioomgs 19 which are made comparatively small in (liometer in order to permit the pole pieces to he brought closeloge'hher so that the Wullh. oi

' the magnet will be somewhat less than an vnecessa'iy to take into consideration in ow.

A H V r goo building, it is imperious {chat the pm.- mary valves. be made smell and compooe.

The valve casing 18 provided with a charm her or windway, formed by a recess 20 in the lower section 15 which normally connects the passage 6 anti the aperture 8, one cud of the windway or chamber having the posi sage 21 leading laterally through "she upper section 14 and registering with theport 7 One of the Walls of-sepicl passage is inclined,

as shown, to permit the free ingress ancl egress of the air: theretlirough as rbhe Wind passes into the channel 6 from the chamber 2, or moving in the reverse direction posses outwardly through the Windvmy in the valve casing to the atmosphere. The valve is applied in position on the face board 1*- of the wind chest, which is provided; wish the, operture S of sufllcient diameter to accommodate the magnet, and also provide ample space for the circulationv of the Wind, me lower: end of said. aperture being covered by the valve casing in which is provided. bhe inlet port '22 located between the pole pieces anal aifording communication between the interior of the Wind chest and. aha valve casing. '1. he desired in the port 22 is ohtziimxl by making she lateral and; end Walls [thereof curved,.g1s shown, so "shot is Width.

at the ends is greater sham at the center. The object in making the port in this shape ism provide with a maximum area, yet leaving suiliciem; material between the pole pieces of the magnet zmcl the walls of the port so as not to Weaken the cosin A port of this shape also distributes the pressure evenly on the valve head and being locatecl' ;betvveen the pole pieces the pressure will he exerted on. the head centrally.

Tl'iemovoble member of the valve is made of a SlllalllI'Ofl. clisl: or armature 23 located directly beneath the pole pieces of the maghet and provided upon upper surface with a thin cover of paper or other material which will. prevent infizimate contact between is andfliie ends of the pole pi and films prevent the disk from being 17c ed by the residual magneici m lzlie megnelg,which on account: of the light weight of the disk might cause it to aclhere to the pole pieces or to i'emler the dish: sluggish in its action in resuming to noiz'mol position when the magnet is clenergized. The movable member of the valve is held in. its proper position relatively to the pole pieces by a plui'ality of small posts or pins 2:5 carried on the lower section 15 of the valve casing and forming moons for centering the disk. The movable mom her or disk is normally seated in the position shown in Fig. 2 closing the outlet possage and controlling the passage of air through two curved or segmental apertures or ports 26. The walls of the letter taper inwai'clly, as shown in Figs. 3 and l, and. terminate in the scatsinclicoted by 27 formed on the faces of the bosses or nipples projecting upwardly from the bottom of the recess 20 which are of sufi'icient height to sofeport the disk 33 centrally between the upper and lower Walls of the chamber 20: so that the l l oclmiteecl imo the casing through the port 22 under pressure,- will as nearly as possible, exert an equal influence upon each side; of the disk and thus reduce to a minimum the Work requireclof themognet. lit is to this end that the opercures 26 are made in the segmental shapeillustmteal, os I'hove found in px-ocsice that this form permits providing the valve seal; with OLSSElgfiS of sufficient area to vent the relief channel (3 satisfactorily Wil'hout emisingsuch a, great dill erence bclween Zhe air pressure exerli'ed on opposite sides of the ilisk ostoreqm're the use of o strong magnet to lift it from its scalp.

The outlet apertures 26 arrongecl symmerically at opposite sides of o line extend ing at right angles to the center line of the port 22, and. are curved and located with sheiii central points ocljocem, advantage being obtained by this oi'rangeinent in that the disk 23 is so nicely balanced thatlooch when ultra-steel by the pole pieces anal re leased l lieretfrom simultoiieously opens and closes both. of the valve/seizes instead of ice ho ving a tendency ho tilt thereon, anti. lhus imperfecbly control. the opening anal closing" of ihe pores. The curving of the pores 26 and positioning them as shown provides means whereby the air cuz'yenfis may impinge on the disk in tmiisverse lines falling moat the center of the disk oucl arrangement of parts which not? only fillifi to its free action, or: mentioned above, but also assures its propei'ly seating although-Sit, is loosely To mined between she pihs'il5 In order to pieven'i the entrance of dust or other foreign particles which might interfere with the operation of the valve, there is insei ced between the sections easing a screen, and for this lm-pose preferably em ploy a fummio'ous fabric, such chiffoo 01' bolting cloth, indicated by 28, pasted on the face of the upper section 16, covering the passage 21 and port 22.

The valve structure is preferably detachably connected to the wind trunkin the position shown in Fig. 1, by means of screw hooks 29, the heads of which may be rotated intoengagement with the outer face of the section 15 of the casing and when in this position held the parts of the casing together, and the latter as a whole being tightly locked in engagement with the face board 1 of the wind chest.

In order to economize space and permit the adjacent valve casings to be arranged closely together as well as to accurately center each of the casings, I provide the edges of the valve casing with notches receiving the bodies of the fastening devices 29. These notches I prefer to locate at diagonal corners of the valve casing, as indicated at 30, making them of suflicient depth so that the shanks of the screw hooks will lie within the rectangular outline of the casing. By this arrangement only two hooks are devoted to a single valve structure and in practice when these are arranged side by side any one of them may be detached by revolving its fastening devices the heads of which will then extend outwardly without interference with the casings of the adjacent valves.

A- valve constructed in accordance with my invention is simple in construction, possesses few parts, and the sectional casing made in the form shown is particularly adapted to be made of cast metal. The means employed for attaching the casing to its support or the cooperating part of an organ facilitates its ready attachment and re moval and the inspection of the valve disk. Moreover the arrangement of the parts as described and the disposition of the ports in the chamber or windway provides an. ex-

' tremely sensitive and quickly operating valve.

I claim as my invention:

1. In a primary valve for musical instruments, the combination with a casing composed of separable sections having a chamber between them and an electro-magnet comprising pole-pieces located in one section, the latter being provided with a port located between said pole pieces, of bosses Within the chamber on the other section of the casing having apertures, and forming a plurality of valve seats extending across the port and having their ends extending beyond the sides thereof and a metallic said member.

an aperture located between the pole pieces, a

and the lower section being recessed to form a chamber, of bosses arr; nged in the recess I of the lower section, the latter being provided with apertures extending through the bosses, a movable valve member cooperating with the faces of the bosses to normally close said apertures'last named and pins spaced about the bosses and forming a retaining cage for the member.

3. The combination with a. valve casing composed of separable sections providedwith a chamber, one of said sections having an outlet passage for the chamber and. an inlet port, the other section. being provided with an outlet port, of a foraminous fabric located between said sections, a movablevalve member cooperating with the outlet port and an electromagnet for operating 4.As an article. of manufacture a valve mechanism comprising a casing composed of two separable half sections of cast metal and provided with a chamber having an opening leading through one of the sections, one of the latter being provided with an inlet port, the other having an outlet port, an electromagnet having its pole pieces secured in the first mentioned section, and a movable member coiiperating with the mag net and controlling the passage of air through both ports.

5. The combination with a support and a valve mechanism comprising a rectangular casing having notches in its diagonal corners, of fastening members each comprising a shank rotatably connected to the support and a head thereon movable into and out of engagement with said casing by rotation of the shank, said shanks occupying said notches and being arranged within the dimensional lines of the casing, whereby a plurality of such casings may be placed in contact with one another side by side or end to end.

ROBERT HOPE-JONES.

Witnesses: I

Grouse NV. POUND, Enwann L. June. 

